diff --git a/src/backend/statistics/README.dependencies b/src/backend/statistics/README.dependencies
index 59f9d57..d10e4d0 100644
--- a/src/backend/statistics/README.dependencies
+++ b/src/backend/statistics/README.dependencies
@@ -90,7 +90,7 @@ Where 'd' is the degree of functional dependence (a=>b).
 With more than two equality clauses, this process happens recursively. For
 example for (a,b,c) we first use (a,b=>c) to break the computation into
 
-    P(a=?,b=?,c=?) = P(a=?,b=?) * (d + (1-d)*P(b=?))
+    P(a=?,b=?,c=?) = P(a=?,b=?) * (d + (1-d) * P(c=?))
 
 and then apply (a=>b) the same way on P(a=?,b=?).